Machine for making elastic paper



Nov. 6, 192s. 1,690,172

w. A. LORENZ MAQHINE FOR MAKING ELASTIG PAPER Filed April 9, 1927 f2 ffy Patented Nov. 6, l928.

UNITED STATES PATENT OFFICE.`

WILLIAM A. mnENz, oE'wEs'r HARTFORD, CONNECTICUT; rHoEBE BUNEEE LoEENz ExECU'rEIx oEsArn `WILLIAM A. LonENz, nECEAsEn.

MACHINE FOB MAKING ELASTIC PAPER.

Application led April 9,

The aim of the present invention is to provide an improved method of and apparatus for corrugating and crinkling paper at a high rate of production and without 1n]ury to the paper. c

More particularly, an aim of the inventlon is to provide certain improvements 1n a machine of the type shown in my` Patent No. 1,548,788, dated August 4th, 1925.

Other objects will be in part obvious and in part pointed out more in detail hereinafter.

The invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinc after set forth, and thescope of the applicaltion of which will be indicated in the appended claims.

In the accompanying drawings, whereln I have shown, for illustrative purposes, one embodiment which the present invention may take:

Fig. 1 is a vertical longitudinal view through my improved machine;

Fig. 2 is a top plan view; Fig. 3 is an enlarged view showing in de-l tail the manner in which the paper is crinkled as it passes from the cylinder 10 to the cylinder 11;

Fig. 4 is a sectional view taken substantially on line 4-4 of Fig. 1; and

Flg. 5 is an inside view of the forward end of the plate 21. u In accordance with the present invention, I provide a series of cylinders so arranged that the paper is delivered from one to the other, each successive cylinder running at a lesser speed than the preceding one so as to 4o elect a retardation in the speed of thel` paper, accordingly resulting in crping or crinkling the same on transverse lines. These cylinders are preferably circumferentially corrugated and certain of the cylinders are roughened or 46 provided with teeth to facilitate the crinkling action as the paper is delivered thereto. U Also, the cylinders are provided with stationary plates for holldniig thepaper on the cylinders during the cr' in operations, these plates being provided .with corrugations which match with the corrugations of the respective cylinders with which they are associated. the accompanying drawings, the machlne 1s shown more or less diagrammatically.

Referring to the drawings in detail, I

y1927. serial No. 182,304.

' 15. The teeth l5 by preference notch with and extend into the grooves between .the ribs of the cylinder 10, but they do not scrape or touch the cylinder 10 so that tearing or injury to the paper is avoided. The rear face` of i each tooth 15 is preferably radial while the advancing face is preferably oblique, as shown most clearly in Figs. l and 3.

The cylinder 12 which receives the aper from the cylinder 11 is similar to the cylinder' 11 but rotates in the opposite direction. The cylinder 12 has rings of teeth 16 which match with thegrooves in the cylinder 11 in the same manner as do the teeth 15 match with the grooves of the cylinder 10.

Associated with the respective cylinders 10, 11 `and 12 are curved plates 20, 21 and 22 which are generally similar in construction. The plate 20 is curved concentrically to the cylinder 10 and is provided on its concave face with. ribs 23 which match'with the annular grooves in the periphery of the cylinyder 10. Similarly, the plate 21 has ribs 24 which match with the grooves of the cylinder 1l, and the plate 22 has ribs 25 matching with the grooves of the cylinder 12.

The plates are preferably adjustable so as to vary the distance between them and the respective cylinders, it being desired that while theplates are so located as to hold the paper on the cylinders, they do not so closely it the cylinders as to interfere with the paper being carried thereby.- In the present illustrative disclosure, the plate'20is .pivoted at oneend as at 30 and its other end is adjustable. The manner in which this plate and the other plates are adjustablemay be varied as desired, but by way of example I have shown the plate 20 as havingl an arcuate slot 3 1 which receives a screw 32 carried by the rame'of the machine. Theplate 21 may be vertically adjusted through the gears 33, one of these gears being located on a threaded stud 3 4 depending from the plate 21. The plate 21 may be clamped in ad]usted position by the screws 35. The plate 22 is pivoted as :1t/36 and is clamped in any desired position of adjustment by the screw 37. It will be seen that the forward end of the plate 21 is corrugated so as to provide fingers or teeth 38 which extend into the grooves in the cylinder 10 so as to strip the paper from that cylinder as it is delivered to the cylinder 11. The plates 21, 22 and 23 may be of any suitable length and their concave surfaces are smooth.

The cylinders may be supported in any suitable frame, but by way of illustration I have shown this frame as comprising a pair of side members 40 secured together by tie rods 41. The cylinders are geared together so that the successive cylinders rotate at relatively slower speeds. In the present illustrative disclosure, the shaft 45 of the cylinder l0 is provided with a gear 46 which meshes with a larger gear 47 fixed to the shaft 48 of the cylinder 11. Fixed on this shaft is a gear 49 which meshes with a larger gear 50 on thel shaft 51 of the cylinder 12. This train of gears may be driven from a gear 52 lixed on a main shaft 53 and meshing with the gear 46. Suitable change gears may be employed if desired.

Cooperating with the cylinder 10 is a coin-v panion spring pressed roller 55 which is circumferentially corrugated as indicated in Fig. 2 so as to mesh with the corrugations of the cylinder 10 whereby the web, as it passes between these members, is longitudinally corrugated. The roller 55 may be rubber covered. The paper may be delivered to the roller 55 from a roll of paper 56. It will be found of advantage to meisten the web of paper and this may be done in any suitable manner as, for example, by spraying the water onto the paper from suitable pipes 60. The number of pipes may be asdesired and some of those shown may be omitted. The roller 55 may be driven at the same peripheral speed as the cylinder 10 as, for example, through the gears 61 and 62.

lThe operation of the machine is brieiy as follows: As the paper passes between the cylinder 10 and the roller 55, it is wetted and is caused to conform to the circumference of the cylinder 10, resulting in the paper being corrugated. The cylinder 10 carries the corrugated paper into the throat between the cylinder 10 and the cylinder 11 where it is stripped off from the cylinder IO and cross crinkled by the teeth on the cylinder 11. The cylinder 11 carries the paper into the throat between itself and the cylinder 12 and delivers the paper to the cylinder '12. As the paper is transferred from the cylinder 11 to the cylinder 12, it is further crlinkled owing to the slower movement of the cylinder l2. The cylinder 12 delivers the crinkled paper to a suitable belt 63. Obviously, t-he machine may be employed to operate on fabric webs other than of paper.

I claim as my invention:

1. In a machine of the character described,

a pair of cooperating cylinders one delivering to the other. each of said cylinders being provided with circumferential corrugations and the receiving cylinder being revolved at a slower speed than the delivering one, and plates curved about said cylinders and having corrugations matching with those of the cylinders.

2. In a machine of the character described, a pair of cooperating cylinders one deliveringl to the other, each of said cylinders being provided with circumferential corrugations and the receiving cylinder being revolved at a slower speed than the delivering one, and plates curved about said cylinders and having eorrugations matching with the corrugations of said cylinders, the end of that plate about the delivering cylinder extending into the throat between said cylinders and the forward end of the plate about the receiving cylinder having lingers extending into the grooves of the delivering cylinder.

3. In a machine of the character described, a pair of cooperating 'cylinders one delivering to the other, each of said cylinders-being provided with circumferential corru ations and the receiving cylinder being revo ved at a slower speed than the delivering one, plates curved about said cylinders and having corrugations matching with those of the cylinders, and means for adjusting said plates relative to the respective cylinders.

4. In a machine of the character described, a pair of cooperating cylinders one delivering to the other, the receiving cylinder having a roughened surface and being driven at a slower peripheral speed than the delivering cylinder whereby the paper is crinkled as it is transferred from one cylinder to the other, and plates curved about said cylinders for holding the `paper thereagainst.

5. In a machine of the character described, a pair of cooperating cylinders one delivering to the other, means for driving the receiving cylinder at a slower speed than the delivering one whereby the paper is crinkled as it is transferred from one cylinder to another, and means for delivering the paper to the receiving cylinder at a greater speed than the peripheral speed of said cylinder whereby the paper is partially crinlrled as it is delivered to the receiving cylinder.

6. In a machine of the character described, a succession of at least three cylinders arranged to deliver a paper web one from the other, each of said cylinders having circumferential corrugations, the corrugations of each succeeding cylinders matching with the grooves of the preceding one, and means for driving each succeeding cylinder at a slower speed than the preceding one whereby the paper is transversely crinkled upon each transfer from one cylinder to another.

7. In a machine of the character described, a succession of at least three cylinders arranged to deliver a paper web one from the other, each of said cylinders having circumerential corrugations, the corrugations of each succeeding cylinder matching' with the grooves ot the preceding one, means for driving each succeeding cylinder at a slower speed than vthe preceding one whereby the .paper is transversely crinkled upon each transfer from one cylinder to another, and curved plates about each of said cylinders and having corrugations matching with the grooves thereof.

8. In a machine of the character described, a pair of cylinders placed close together Without contact and cooperative to form a throat, each of said cylinders on its periphery having teeth with clearances i'n front of the same, the receiving cylinder being driven at a slower speed than the delivering one, and means for delivering a paper web to the delivering cylinder at a greater speed than the peripheral speed of said cylinder whereby the paper is crinkled as it is delivered thereto.

9. In a machine of the character described, a pair of cylinders placed close together Without contact and cooperative to form a throat, each of said cylinders having on its periphery teeth with clearances in front of the same, the receiving cylinder being driven at a slower speed than the delivering one, means for delivering a paper web to the delivering cylinder at a greater speed than the peripheral speed of said cylinder whereby the paper is crinkled as it is delivered thereto, and plates curved about each of said cylinders for holding the paper thereagainst.

10. In a machineof the character described, a succession of at least three cylinders arranged to `deliver a paper web one from the other means for driving each successive cylinder at a lesser speed than the preceding one, the second and third cylinders being provided with teeth to effect crinkling of the paper as it is delivered thereto.

11. In a machine of the character described, a succession o cylinders arranged to deliver a web one from the other, the first of said cylinders having circumferential corrugations and the second and third of said cylinders having circumferential rings of teeth, the rings of teeth of the second cylinder matching with the grooves of the first cylinder and the rings of teeth of the third cylinder matching with the grooves of the second cylinder, and means for driving each successive cylinder at a lesser speed than the preceding one.

12. In a machine of the character described, a succession of at least three cylinders arranged' to deliver a web one from the other, the first of said cylinders having circumferential corrugations and the second and third of said cylinders having circumferential rings of teeth, the ringsof teeth of the second cylinder matching with the grooves of the first cylinder and the rings of teeth of the third cylinder matching with the grooves of the second cylinder, means for driving each successive cylinder at a lesser speed than the preceding one, and adjustable plates curved about each of said cylinders and having ribs matching with the grooves thereof.

WILLIAM A. LORENZ. 

